Last week, the Clean Air Scientific Advisory Committee formally transmitted its recommendations to EPA Administrator Regan regarding the PM2.5 NAAQS. Consistent with trade press reporting over the past few months, the majority of CASAC members recommended that the PM2.5 NAAQS be set between 8-10 ug/m3. A minority recommended the range be set between 10-11 ug/m3. I’d be surprised if the revised NAAQS is set above 10 ug/3.
For me,… More